<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>table</title>
</head>
<body>
<h1>colspan 跨行</h1>
<h1>rowspan 跨列</h1>

<table border= "1 "   width= "200 " >
    <tr>
        <td colspan="4"  >ss
        </td>
    </tr>
    <tr>
        <td   width= "25% "> 　 </td>
        <td   width= "25% "> 　 </td>
        <td   width= "25% "> 　 </td>
        <td   width= "25% "> 　 </td>
    </tr>
    <tr>
        <td   width= "25% "rowspan="2"> 　 </td>
        <td   width= "25% "> 　 </td>
        <td   width= "25% "> 　 </td>
        <td   width= "25% "> 　 </td>
    </tr>
    <tr>
        <td   width= "25% "> 　 </td>
        <td   width= "25% " rowspan="3"> 　 </td>
        <td   width= "25% "> 　 </td>
    </tr>
    <tr>
        <td   width= "25% " colspan="2"  > 　 </td>
        <td   width= "25% "> 　 </td>


    </tr>
    <tr>
        <td   width= "25% "> 　 </td>
        <td   width= "25% "> 　 </td>
        <td   width= "25% "> 　 </td>
    </tr>
</table>
</body>
</html>